Polar Star, the name in precision airsoft manufacturing has released a rare mock suppressor unit for KWA Mac-11/M11 gas blowback sub-machine guns. Engineered with an interlocking internal barrel system, this clever design ensures a solid fit with zero wobble once you've attached it to your airsoft M11. Each piece is CNC machined from aircraft grade aluminum and then anodized to military specifications. Approved by the ATF and made in the USA.